An allergic reaction to any constituent in shampoo or hair products can cause hair loss. Shampoos are designed to be as safe as possible, although there is always someone who will react to them. Caustic hair dyes, straighteners, and other products can certainly cause inflammation of the scalp and result in hair loss.
Can my hairstyle cause my hair to fall out?
Certain hairstyles can contribute to hair loss, most notably styles involving tight braids or pull-backs. This form of hair loss is called traction alopecia. This occurs when the hair is pulled tightly back and fastened at the base of the skull, or braided into tight braids or rows. Exposure to this type of hairstyle over long periods can result in a scarring alopecia, with no potential for regrowth.
If you are uncertain about the condition of your hair and scalp then take advice from a qualified trichologist.
